1. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
2. CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, 637553, Singapore
3. Department of Chemistry, National Taiwan University, Taipei City, Taiwan
4. School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
5. The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
6. The Biophotonics and MechanoBioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia